Programming Super-Challenge
Prime Numbers
Write a program that does the following task
List all of the prime numbers up to a certain number.
e.g. prime numbers up to 10 are: 2, 3, 5, 7
(Hide from student if appropriate)
Programming Hint:
A simpler version of this task is to enter a number and say if it is a prime.
A harder version is to add up all of the primes up to a certain number!
You can loop a certain number of times using code like this…
for num in range (0,10):
print (num)
…etc...
‘num’ is a variable.
This code would loop ten times (from 0 to 9!) and
display 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
The numbers in the brackets could be variables too.
The percent symbol (%) can be used to give the remainder of a division sum,
e.g. 10%2 = 0 (10 divided 2 = 5 remainder 0)
e.g. 10%3 = 1 (10 divided 3 = 3 remainder 1)